I have a full stock Hawken style/ plains rifle. I love the rifle, it fits me perfectly. It’s a .58 flintlock, late English lock. 1” 36” barrel, I’m not sure what brand. Are they generally marked underneath? The only thing that could be an improvement to me would be to have the removable breech installed. Do y’all think it would be too much trouble to do? Where would one start? Figure out what size threads on my existing breech plug? Anyone out there done this? I’m sure that’s a silly question. Might even entertain having it done, who to talk too? I guess it’s more of a want then a need,Input very much appreciated.